名校
1 . 已知数列
前
项和
,则该数列的通项公式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c17d419ca0e12a4b0bc982e1fbd3e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
您最近一年使用:0次
2019-06-12更新
|
1024次组卷
|
4卷引用:上海市七宝中学2017-2018学年高一下学期期末数学试题
名校
2 . 已知
为等差数列,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193577440a100caf3780f4cc8a5d1574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc807ea4b8a7ed325aee49aa292552ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547343b443dba2d77da457f77c21b204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
您最近一年使用:0次
2019-06-12更新
|
375次组卷
|
2卷引用:上海市七宝中学2017-2018学年高一下学期期末数学试题
名校
3 . 已知
是等差数列,
是其前
项和,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5dfc5ea772fe601578d205234e3ac08.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f037b0ec3d03dc5430404f12a8f20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5dfc5ea772fe601578d205234e3ac08.png)
您最近一年使用:0次
2019-06-12更新
|
547次组卷
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3卷引用:上海市七宝中学2017-2018学年高一下学期期末数学试题
名校
4 . 在等差数列
中,已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/722532e9b50c1c99eeb909493d4f9971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
您最近一年使用:0次
2019-06-12更新
|
318次组卷
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3卷引用:上海市七宝中学2017-2018学年高一下学期期末数学试题
名校
5 . 若无穷数列
满足:
,当
,
时.
(其中
表示
,
,…,
中的最大项),有以下结论:
①若数列
是常数列,则
;
②若数列
是公差
的等差数列,则
;
③若数列
是公比为
的等比数列,则
;
④若存在正整数
,对任意
,都有
,则
是数列
的最大项.
则其中正确的结论是_____ (写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3068733ef2ceda9f1620d5c9bcdfa542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333c77d78bdd083d1f8b7f010d05b740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37715f49f9302c190225c4fe7bbd47ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7230de53663c75658c58bbf206a0085.png)
①若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c60de05900c8d51f2cf77e5e496d93e.png)
②若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8bbb4a09e0ac86bbae46222a90841.png)
③若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
④若存在正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2b94cbf8f1acc77ed2618d9ba5756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
则其中正确的结论是
您最近一年使用:0次
2019-04-18更新
|
1211次组卷
|
5卷引用:2019年上海市闵行区高三上学期期末质量调研数学试题
(已下线)2019年上海市闵行区高三上学期期末质量调研数学试题【校级联考】江苏省泰州中学等2019届高三第二学期联合调研测试数学试题江苏省泰州中学、宜兴中学等校2019届高三4月联考数学试题(含附加题)【校级联考】江苏省高三泰州中学、宜兴中学、梁丰2019届高三第二学期联合调研测试数学试题(已下线)专题6.5 数列的综合应用(练)【理】-《2020年高考一轮复习讲练测》
名校
6 . 已知a,
,
,且a、ab、b成等差数列,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad769213fb1c155854b5657bef1e858b.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f059e451fc147d98681d846e5dff60c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7e19e74429f49314d8770986ffe10b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad769213fb1c155854b5657bef1e858b.png)
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2019-04-17更新
|
487次组卷
|
2卷引用:上海市七宝中学2017-2018学年高三上学期期中数学试题
名校
7 . 在等差数列
中,已知
,前7项和
,则该数列的公差![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a4658ab94306d39aedda17deed7216.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfe8e8ac35b1fe557837eb4c29aa80c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833effce57a7363551364caf585cd141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99a4658ab94306d39aedda17deed7216.png)
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2018-12-08更新
|
304次组卷
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2卷引用:【区级联考】上海市闵行区2017-2018学年高二(上)期末数学试题
10-11高一下·福建泉州·期末
名校
8 . 已知函数
,项数为
的等差数列
满足
,且公差
,若
,则当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
__________ 时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/341acf7def432acf9f44404c88ce8002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ef963f7042f5648acebc2f38246f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8582b63cbd73a1737c5d9fe0b2ed1b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d44b4c92e90708bcc28c09666b12ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2007b212e612bacff87dfa6524867ad.png)
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2018-04-02更新
|
643次组卷
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4卷引用:上海市七宝中学2016-2017学年高二上学期开学考试数学试题
上海市七宝中学2016-2017学年高二上学期开学考试数学试题(已下线)2010-2011年福建省南安一中高一下学期期末考试数学2015届江苏省如东高中高三上学期第9周周练理科数学试卷北京市海淀区北京57中2016-2017学年高一下期中考试数学试题
9 . 已知数列
的前
项和
,且满足
,则正整数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467405b57ddf673891dd4bc7a2b1507a.png)
_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4effeb3b7bd30976026b3cb568f450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d944e24e328fa3b693053966173786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467405b57ddf673891dd4bc7a2b1507a.png)
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2018-02-27更新
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748次组卷
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3卷引用:上海市闵行中学文绮中学2023届高三上学期开学考数学试题
10 . 已知数列
满足
,则使
成立的正整数
的一个值为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7544abff8204d797f90fe615655a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b4fbe86589928a8f2f27491422c9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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